C150052 Feasibility Study

• Contract/PO #: C150052
• Contractor Name: Tunnel Water Company, The
• Contract Type: Loan
• Water District: 3
• County: Larimer
• Bill Number: EIA
• Loan Projects - Doc Type: Feasability Study

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01010 - SUMMARY OF WORK

PART 1. WORK COVERED

PHASE 1 WORK

1.01 MOBiliZATiON

Furnish at the job site all equipment, facilities, and materials required to complete the described tunnel
rehabilitation work and all appurtenance facilities. Includes move in, move out, all bonds and insurance, and
staging area preparation.

EASTERN TUNNEL

V 1.02 ACCESS ROAD

Furnish all equipment, labor, and materials required to improve approximately 2,500 lineal feet of access road to
the east tunnel portal. Work will include removing an estimated 30 trees of less than 8" caliper, installing 12 feet
of 18" diameter reinforced concrete culvert with flared end section, replacing an existing 8" diameter CMP
culvert, placing 4" of road base in 12' wide roadway, placing Jersey barriers on trail up to portal, and providing
necessary silt fence and straw bail erosion protection. Approximately 400 yards' of road base is to be excavated
from the top of the muck piie at the east tunnel portai as directed by the Engineer.

1.03 EASTERN PORTAL

Furnish ail equipment, labor, and materials required to enlarge, improve, and stabilize eastern tunnel portal for
safety and the equipment access required for the underground work. The Contractor shall submit shop drawings
detailing the proposed portal improvements. The work may include, but is not limited to, the following items:
scaling, rock reinforcement, shotcrete, steel ribs/lagging, temporary timber canopy.

1.04 CONCRETE INVERT AND PERMANENT RAIL

Furnish all equipment, labor, and materials required to place approximately 2,000 linear feet of concrete invert
and permanent rail extending from the eastern portal to Station 20+00. The work will include all required
preparation and cleaning of 2,000 lineal feet of invert, hauling and placement of approximately 450 yards' of
fiber reinforced conventional concrete, and installation of 2,000 iineal feet of rail compatible with the
Contractor's equipment and underground work plan.

1.05 TEMPORARY RAIL EAST

Furnish all equipment, labor, and materials required to install approximately 3.333 lineal feet of temporary raii
extending from Station 20 + 00 through the caved section at Station 53 + 33. The work includes all ties, rails,
blocking, and shims necessary for a complete installation.

1.06 REMINE TiMBER SECTION

Furnish ail equipment, labor, and materials to remove existing timber support and remine 25 lineal feet of tunnel
from approximately Station 14 + 26 to Station 14 + 51. The work includes drilling up to 100 lineal feet of probe
holes to assess rock conditions, providing and installing approximately 8 steel ribs with al\ 'equi,etI spiling,
lagging, cribbing, clamps, foot blocks, tie rods, and all accessories; and removing associated muck.

10/00

Section 01010. Page 1 of 4